Washing and purifying system capable of removing white smoke

Abstract

The utility model discloses a washing and purifying system capable of removing white smoke, which comprises a deep filtering and washing tower, and a multi-stage filtering cavity of the deep filtering and washing tower is transversely provided with an acid washing filtering cavity, an alkali washing filtering cavity, a water washing filtering cavity and a demisting filtering cavity according to a gas flow direction; a pickling solution storage tank is arranged at the lower part of the pickling filtering cavity; a pickling filler mounting plate and a pickling spraying system are arranged above the pickling solution storage tank; an alkali washing liquid storage tank is arranged at the lower part of the alkali washing filtering cavity; an alkali washing filler mounting plate and an acid washing spraying system are arranged above the alkali washing liquid storage tank; a water washing liquid storage tank is arranged at the lower part of the water washing filtering cavity; a water washing filler mounting plate and a water washing spraying system are arranged above the water washing liquid storage tank. The utility model discloses a washing and purifying system capable of removing white smoke, which can be used for carrying out graded purification on introduced waste gas, removing the white smoke, realizing cyclic utilization and waste liquid recovery on liquid subjected to graded treatment, and realizing demisting and white smoke removal on discharged gas. And the energy-saving cyclic utilization performance of purification is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection purification treatment, in particular to a washing and purification system capable of removing white smoke. Background Art

[0002] In the prior art, dust reduction is carried out on waste gas by spraying during waste gas treatment. However, in the process of combining dust reduction and purification, it is difficult to achieve graded purification by spraying reagents in the vertical graded purification reaction chamber in the prior art. In the process of graded treatment, the purification effect is easily disturbed by the reagents at the upper and lower levels; it is also not convenient to recover the waste liquid. Summary of the invention

[0003] The utility model overcomes the shortcomings of the prior art and provides a washing and purification system capable of removing white smoke. The utility model can grade and purify the introduced exhaust gas, remove the white smoke, and realize recycling of the liquid recovered by graded treatment and waste liquid recovery, and realize demisting and removal of white smoke for the exhausted gas; thus, the energy-saving and recycling performance of the purification is improved.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a washing and purification system capable of removing white smoke, comprising: a deep filtering washing tower, a multi-stage filtering chamber is arranged in the deep filtering washing tower, and an air inlet, a sewage outlet, a feeding port, and an air outlet connected to the multi-stage filtering chamber; the deep filtering washing tower comprises an acid washing filter chamber, an alkali washing filter chamber, a water washing filter chamber, and a demisting filter chamber which are arranged in sequence from the air inlet to the air outlet; an acid washing liquid storage tank is arranged at the lower part of the acid washing filter chamber, and the acid washing liquid storage tank An acid wash filler mounting plate and an acid wash spray system for spraying the acid wash filler mounting plate are arranged above the chamber; an alkali wash liquid storage tank is arranged at the lower part of the alkali wash filter chamber, an alkali wash filler mounting plate and an alkali wash spray system for spraying the alkali wash filler mounting plate are arranged above the alkali wash liquid storage tank; a water wash liquid storage tank is arranged at the lower part of the water wash filter chamber, a water wash filler mounting plate and a water wash spray system for spraying the water wash filler mounting plate are arranged above the water wash liquid storage tank; a clean water tank is arranged at the lower part of the demisting filter chamber.

[0005] In a preferred embodiment of the utility model, a plurality of partition plates are sequentially arranged at intervals at the bottom of the multi-stage filter chamber from the air inlet to the air outlet, and the bottom of the multi-stage filter chamber is sequentially divided into an acid washing liquid storage tank, an alkaline washing liquid storage tank, a water washing liquid storage tank, and a clean water tank from the air inlet to the air outlet, and the heights of the partition plates are arranged in ascending steps.

[0006] In a preferred embodiment of the utility model, the pickling liquid storage tank, the alkaline washing liquid storage tank, the water washing liquid storage tank, and the clean water tank are all structures with open tops, and the multi-stage filter chamber is provided with a water inlet connected to the clean water tank; the sewage outlet is connected to the pickling liquid storage tank; and the pickling liquid storage tank and the alkaline washing liquid storage tank are respectively connected with a feeding port.

[0007] In a preferred embodiment of the utility model, the air outlet of the deep filtration washing tower is connected to the fan through an air duct to discharge the purified gas, and an electric heater is provided on the air duct connecting the air outlet and the fan.

[0008] In a preferred embodiment of the utility model, the air flow passage is above the liquid level of the pickling liquid storage tank in the pickling filter cavity, the pickling filler mounting plate is embedded in the air flow passage of the pickling filter cavity, and a gap is reserved between the lower part of the pickling filler mounting plate and the bottom of the pickling liquid storage tank; a pickling air-permeable filler partition for separating the air flow passage in the multi-stage filter cavity is installed on the pickling filler mounting plate; the gas introduced from the air inlet passes through the spraying area of ​​the pickling spray system in the pickling filter cavity and then enters the alkaline filter cavity through the pickling filler plate of the pickling filler mounting plate; the pickling spray system is connected to the pickling liquid storage tank through a primary circulation pump;

[0009] And / or, the air flow path is above the liquid level of the alkali washing liquid storage tank in the alkali washing filter chamber, the alkali washing filler mounting plate is embedded in the air flow path of the alkali washing filter chamber, and a gap is reserved between the lower part of the alkali washing filler mounting plate and the bottom of the alkali washing liquid storage tank; an alkali washing breathable filler partition for separating the air flow path in the multi-stage filter chamber is installed on the alkali washing filler mounting plate; the gas purified by the acid washing filter chamber passes through the spraying area of ​​the alkali washing spray system in the alkali washing filter chamber and then enters the water washing filter chamber through the alkali washing filler plate of the alkali washing filler mounting plate; the alkali washing spray system is connected to the alkali washing liquid storage tank through a secondary circulation pump;

[0010] And / or, above the liquid level of the water washing liquid storage tank in the water washing filter chamber is an air flow passage, the water washing filler mounting plate is embedded in the air flow passage of the water washing filter chamber, and a gap is reserved between the lower part of the water washing filler mounting plate and the bottom of the water washing liquid storage tank; a water washing breathable filler partition for separating the air flow passage in the multi-stage filter chamber is installed on the water washing filler mounting plate; the gas purified by the alkaline washing filter chamber passes through the spray area of ​​the water washing spray system in the water washing filter chamber and then enters the demisting filter chamber through the water washing filler plate of the water washing filler mounting plate; the water washing spray system is connected to the water washing liquid storage tank through a three-stage circulation pump.

[0011] In a preferred embodiment of the utility model, the pickling spray head of the pickling spray system is directly opposite to the pickling filler plate of the pickling filler mounting plate, and a pickling spray area is reserved between the pickling spray head and the pickling filler plate;

[0012] and / or, the alkali cleaning spray head of the alkali cleaning spray system is directly opposite to the alkali cleaning filler plate of the alkali cleaning filler mounting plate, and an alkali cleaning spray area is reserved between the alkali cleaning spray head and the alkali cleaning filler plate;

[0013] And / or, the water washing spray head of the water washing spray system is directly facing the water washing filler plate of the water washing filler mounting plate, and a water washing spray area is reserved between the water washing spray head and the water washing filler plate.

[0014] In a preferred embodiment of the utility model, a second water washing spray system is also provided in the demisting filter chamber, the second water washing spray system is connected to the clean water tank through a four-stage circulation pump, and the demisting filter chamber is connected to the air outlet through a demister.

[0015] In a preferred embodiment of the utility model, the acid washing spray system sprays an acidic liquid, and the alkali washing spray system sprays an alkali washing liquid.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a washing and purification system capable of removing white smoke, which can grade and purify the introduced waste gas, remove the white smoke, realize recycling of liquid recovered from graded treatment and waste liquid recovery, and realize demisting and removal of white smoke for the discharged gas, thereby improving the energy-saving and recycling performance of the purification.

[0018] The waste liquid from graded treatment is recovered by the acid washing filter chamber, alkali washing filter chamber, water washing filter chamber and clean water tank arranged below the demisting filter chamber; and the corresponding spraying systems and circulating pumps are used to achieve the effect of circulating spraying, thereby improving the energy-saving and recyclability of purification.

[0019] By setting a demisting filter chamber at the tail end of the purification process and a demister at the air outlet of the demisting filter chamber, the demisting of the purified gas is improved. In addition, the electric heater on the pipeline is used to increase the gas temperature to reduce the water vapor in the gas, thereby further improving the effect of removing white smoke from the gas.

[0020] The pickling liquid storage tank, the alkaline liquid storage tank, the water washing liquid storage tank and the clean water tank are arranged as ascending stepped tanks, and a water inlet is arranged at one end of the clean water tank. During the waste discharge process, the liquid is sequentially introduced from the clean water tank into the water washing liquid storage tank, then into the alkaline liquid storage tank, and finally into the pickling liquid storage tank and then discharged through the sewage outlet of the pickling liquid storage tank. In the process of satisfying the cycle spraying, the purification state of the liquid in the pickling liquid storage tank, the alkaline liquid storage tank, the water washing liquid storage tank and the clean water tank can also be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the system structure of a washing and purification system capable of removing white smoke in the present application;

[0023] Figure 2 This is a schematic diagram of the process flow of a washing and purification system capable of removing white smoke in the present application;

[0024] Figure 3 This is a functional flow diagram of a washing and purification system capable of removing white smoke in the present application;

[0025] Among them, 1-deep filtration washing tower, 10-multi-stage filtration chamber, 11-drainage port, 12-feeding port, 13-air inlet, 14-water inlet; 2-acid washing filtration chamber, 21-acid washing liquid storage tank, 22-acid washing spray system, 23-acid washing breathable packing interlayer, 24-acid washing packing mounting plate, 25-primary circulation pump; 3-alkali washing filtration chamber, 31-alkali washing liquid storage tank, 32-alkali washing spray system, 33-alkali washing breathable packing interlayer, 34-alkali washing packing Mounting plate, 35-secondary circulation pump; 4-water washing filter chamber, 41-water washing liquid storage tank, 42-water washing spray system one, 43-water washing breathable filler interlayer, 44-water washing filler mounting plate, 45-third-stage circulation pump; 5-demist filter chamber, 51-clean water tank, 52-water washing spray system two, 53-demister, 54-air outlet, 55-fourth-stage circulation pump, 56-spiral deflector, 6-electric heater, 7-fan, 71-fan filter, 8-air duct. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the utility model and the specific features in the embodiments are detailed descriptions of the technical solution of the utility model, rather than limitations on the technical solution of the utility model. In the absence of conflict, the embodiments of the utility model and the technical features in the embodiments can be combined with each other.

[0027] The term "and / or" is only a description of the association relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " generally indicates that the related objects are in an "or" relationship. Embodiment 1

[0028] like Figure 1-Figure 3 As shown, a washing and purification system capable of removing white smoke comprises: a deep filtration washing tower 1, a multi-stage filtration chamber 10 is arranged in the deep filtration washing tower 1, and an air inlet 13, a sewage outlet 11, a feed port 12, and an air outlet 54 connected to the multi-stage filtration chamber 10. The air outlet 54 of the deep filtration washing tower 1 is connected to the fan 7 through the air duct 8 to discharge the purified gas. An electric heater 6 is arranged on the air duct 8 directly between the air outlet 54 and the fan 7. In this embodiment, the electric heater 6 adopts a product in the prior art, as long as it can heat the airflow passing through the air duct 8, and the selection of product models will not be repeated here.

[0029] Specifically, a plurality of partition plates are sequentially arranged at intervals at the bottom of the multi-stage filter chamber 10 of the deep filtration washing tower 1 from the air inlet 13 to the air outlet 54, and the bottom of the multi-stage filter chamber 10 is sequentially divided into an acid wash liquid reservoir 21, an alkaline wash liquid reservoir 31, a water wash liquid reservoir 41, and a clean water tank 51 from the air inlet 13 to the air outlet 54, and the heights of the partition plates are sequentially arranged in a stepped ascending manner. The acid wash liquid reservoir 21, the alkaline wash liquid reservoir 31, the water wash liquid reservoir 41, and the clean water tank 51 in the multi-stage filter chamber 10 are sequentially placed as the acid wash filter chamber 2, the alkaline wash filter chamber 3, the water wash filter chamber 4, and the demisting filter chamber 5. The pickling liquid storage tank 21, the alkaline washing liquid storage tank 31, the water washing liquid storage tank 41 and the clean water tank 51 are all structures with open tops, and the multi-stage filtering chamber 10 is provided with a water inlet 14 connected to the clean water tank 51; the sewage outlet 11 is connected to the pickling liquid storage tank 21; and the pickling liquid storage tank 21 and the alkaline washing liquid storage tank 31 are respectively connected with a feeding port 12.

[0030] Furthermore, a pickling liquid storage tank 21 is provided at the lower part of the pickling filter chamber 2 , a pickling filler mounting plate 24 and a pickling spray system 22 for spraying toward the pickling filler mounting plate 24 are provided above the pickling liquid storage tank 21 . The air flow path is above the liquid level of the pickling liquid storage tank 21 in the pickling filter chamber 2. The pickling filler mounting plate 24 is embedded in the air flow path of the pickling filter chamber 2. A gap is reserved between the lower part of the pickling filler mounting plate 24 and the bottom of the pickling liquid storage tank 21, and the lower part of the pickling filler mounting plate 24 sinks below the liquid level of the pickling liquid storage tank 21. The pickling filler mounting plate 24 is installed with a pickling breathable filler interlayer 23 for separating the air flow path in the multi-stage filter chamber 10. The gas introduced by the air inlet 13 passes through the spraying area of ​​the pickling spray system 22 in the pickling filter chamber 2 and then enters the alkaline filter chamber 3 through the pickling filler plate of the pickling filler mounting plate 24. The pickling spray system 22 is connected to the pickling liquid storage tank 21 through a primary circulation pump 25. The spray head of the pickling spray system 22 is directly opposite to the pickling filler plate of the pickling filler mounting plate 24, and a spraying area is reserved between the spray head and the pickling filler plate. The pickled breathable filler interlayer 23 adopts the waste gas purification filler in the prior art. As long as it can meet the function of air permeability and purification, the selection of the waste gas purification filler will not be described in detail here.

[0031] Furthermore, an alkali washing liquid storage tank 31 is provided at the lower part of the alkali washing filter chamber 3 , an alkali washing filler mounting plate 34 and an acid washing spray system 32 spraying toward the alkali washing filler mounting plate 34 are provided above the alkali washing liquid storage tank 31 . The air flow passage is above the liquid level of the alkali washing liquid storage tank 31 in the alkali washing filter chamber 3, and the alkali washing filler mounting plate 34 is embedded in the air flow passage of the alkali washing filter chamber 3, and a gap is reserved between the lower part of the alkali washing filler mounting plate 34 and the bottom of the alkali washing liquid storage tank 31; and the lower part of the alkali washing filler mounting plate 34 sinks below the liquid level of the alkali washing liquid storage tank 31; an alkali washing breathable filler partition 33 for separating the air flow passage in the multi-stage filter chamber 10 is installed on the alkali washing filler mounting plate 34; the gas purified by the acid washing filter chamber 2 passes through the spraying area of ​​the alkali washing spray system 32 in the alkali washing filter chamber 3 and then enters the water washing filter chamber 4 through the alkali washing filler plate of the alkali washing filler mounting plate 34; the alkali washing spray system 32 is connected to the alkali washing liquid storage tank 31 through a secondary circulation pump 35. The alkali cleaning spray head of the alkali cleaning spray system 32 is directly opposite to the alkali cleaning filler plate of the alkali cleaning filler mounting plate 34, and an alkali cleaning spray area is reserved between the alkali cleaning spray head and the alkali cleaning filler plate. The alkali cleaning breathable filler interlayer 33 adopts the waste gas purification filler in the prior art, as long as it can meet the function of breathable purification, and the selection of the waste gas purification filler will not be repeated here.

[0032] Furthermore, a washing liquid storage tank 41 is provided at the lower part of the washing filter chamber 4 , a washing filler mounting plate 44 and a washing spray system 42 spraying toward the washing filler mounting plate 44 are provided above the washing liquid storage tank 41 . The air flow path is above the liquid level of the water washing liquid storage tank 41 in the water washing filter chamber 4. The alkali washing filler mounting plate 44 is embedded in the air flow path of the alkali washing filter chamber 4. A gap is reserved between the lower part of the alkali washing filler mounting plate 44 and the bottom of the alkali washing liquid storage tank 41; and the lower part of the alkali washing filler mounting plate 4 sinks below the liquid level of the water washing liquid storage tank 41; a water washing breathable filler partition 43 for separating the air flow path in the multi-stage filter chamber 10 is installed on the alkali washing filler mounting plate 44; the gas purified by the alkali washing filter chamber 3 passes through the spraying area of ​​the water washing spray system 42 in the water washing filter chamber 4 and then enters the demisting filter chamber 5 through the water washing filler plate of the water washing filler mounting plate 44; the water washing spray system 42 is connected to the water washing liquid storage tank 41 through a three-stage circulating pump 45. The spray head of the water washing spray system 42 is directly opposite to the water washing filler plate of the water washing filler mounting plate 44, and a water washing spray area is reserved between the water washing spray head and the water washing filler plate. The washable breathable filler interlayer 43 adopts the waste gas purification filler in the prior art. As long as it can meet the function of breathable purification, the selection of the waste gas purification filler will not be described in detail here.

[0033] Furthermore, a clean water tank 51 is provided at the lower part of the demisting filter chamber 5. A second water washing spray system 52 is also provided in the demisting filter chamber 5. The second water washing spray system 52 is connected to the clean water tank 51 through a four-stage circulation pump 55. The demisting filter chamber 5 is connected to the air outlet 54 through a demister 53. Furthermore, the demister 53 adopts a product in the prior art commonly used in waste gas treatment in the prior art; the specific model selection is not repeated here one by one.

[0034] Furthermore, the acid washing spray system 22 sprays an acidic liquid, and the alkaline washing spray system 32 sprays an alkaline washing liquid. The acidic liquid can directly adopt the acidic liquid commonly used in waste gas treatment in the prior art. The acidic purification liquid commonly used in waste gas treatment can be purchased directly from the market according to actual use requirements. The alkaline washing liquid can directly adopt the alkaline washing liquid commonly used in waste gas treatment in the prior art. The alkaline washing purification liquid commonly used in waste gas treatment can be purchased directly from the market according to actual use requirements. The selection of acidic liquids and alkaline washing liquids will not be listed and elaborated one by one here, as long as the purification function of the utility model can be basically achieved. Embodiment 2

[0035] like Figure 1-Figure 3 As shown, on the basis of Example 1, a fan filter 71 is provided between the air inlet of the fan 7 and the air duct 8, and a fan filter 71 is also provided on the air outlet of the fan 7, so as to further improve the washing and purification effect of removing white smoke. The fan filter 71 adopts a conventional fan filter in the prior art, and the model selection of the product is not described one by one and listed here. Embodiment 3

[0036] like Figure 1-Figure 3 As shown, on the basis of Example 1 or Example 2, the pH value of the liquid in the pickling liquid storage tank 21 is between 6 and 7; the pH value of the liquid in the alkaline liquid storage tank 31 is between 7 and 8, and the pH value of the water washing liquid storage tank 41 and / or the clean water tank 51 tends to 7. Preferably, the pH value of the liquid in the pickling liquid storage tank 21 is between 6.1 and 6.9; the pH value of the liquid in the alkaline liquid storage tank 31 is 7.1-7.9, the pH value of the water washing liquid storage tank 41 is 6.7-7.3, and the pH value of the clean water tank 51 is 6.8-7.2, and tends to 7. Furthermore, the pH value of the liquid in the pickling liquid storage tank 21 is 6.7, and the pH value of the liquid in the alkaline liquid storage tank 31 is 7.7.

[0037] The pickling area faces the dirtiest and most concentrated waste gas, so the first stage (pickling) sewage discharge is to save water, control the pH range of pickling (6~7), and the acidic pollutants in the waste gas such as HCL and HF are also partially absorbed in this area. Alkali washing is mainly used to remove ammonia and ammonium salts in the gas.

[0038] Furthermore, pickling is to add sulfuric acid to wash alkaline waste gas such as NH4; alkali washing refers to adding alkali to wash acidic waste gas such as HCL, HF, sulfuric acid mist, etc. Water washing is to wash waste gas with water only. In these three processes, fine particles are captured and removed, washed into the sink and discharged. The sewage is discharged from the back to the front and discharged from the system through the pickling area. The pickling filter chamber faces the dirtiest and most concentrated waste gas. Discharging sewage from the pickling filter chamber is water-saving. Second, the pH range of the pickling area of ​​the pickling filter chamber is (6~7). Third, the acidic pollutants in the waste gas, such as HCL, HF, are also partially absorbed in this area.

[0039] The working principle is:

[0040] The utility model discloses a washing and purification system capable of removing white smoke. The waste liquid of graded treatment is recycled by using the acid washing filter chamber, the alkali washing filter chamber, the water washing filter chamber, and the acid washing liquid storage tank, the alkali washing liquid storage tank, the water washing liquid storage tank, and the clean water tank arranged below the demisting filter chamber; and the corresponding spraying system and the circulating pump are respectively used to achieve the effect of circulating spraying, thereby improving the energy-saving and recycling performance of purification. The demisting filter chamber is arranged at the tail end of the purification, and the demisting device is arranged at the air outlet of the demisting filter chamber, thereby improving the demisting of the purified gas. In addition, the electric heater on the pipeline is used to reduce the water vapor in the gas by increasing the gas temperature, thereby further improving the effect of removing white smoke from the gas. The pickling liquid storage tank, the alkaline liquid storage tank, the water washing liquid storage tank and the clean water tank are arranged as ascending stepped tanks, and a water inlet is arranged at one end of the clean water tank. During the waste discharge process, the liquid is sequentially introduced from the clean water tank into the water washing liquid storage tank, then into the alkaline liquid storage tank, and finally into the pickling liquid storage tank and then discharged through the sewage outlet of the pickling liquid storage tank. In the process of satisfying the cycle spraying, the purification state of the liquid in the pickling liquid storage tank, the alkaline liquid storage tank, the water washing liquid storage tank and the clean water tank can also be maintained.

[0041] During operation, turn on the fan, and the exhaust gas is introduced into the acid washing filter chamber of the multi-stage filter chamber through the air inlet on the deep filtration washing tower. After being sprayed by the acid washing spray system in the acid washing filter chamber, most of the acid mist and particulate matter are removed, and the gas drips into the acid washing liquid storage tank. When the gas passes through the acid washing breathable filler of the acid washing filler plate, the gas is further purified by the acid washing breathable filler. The purified gas enters the alkali washing filter chamber through the gap in the acid washing breathable filler, and is sprayed by the alkali washing spray system in the alkali washing filter chamber to achieve alkali washing, and then Then it passes through the alkali-washed breathable filler interlayer on the alkali-washed filler mounting plate, enters the water-washing filter chamber through the gap of the alkali-washed breathable filler, is washed by the water-washing spray system 1 in the water-washing filter chamber, and then enters the demisting filter chamber after passing through the water-washed breathable filler of the water-washed breathable filler interlayer of the water-washed filler mounting plate, is washed and sprayed again by the water-washing spray system 2 of the demisting filter chamber, and then is defogged by the demister and introduced into the air duct through the air outlet, and is discharged through the fan after being heated and dehumidified by the electric heater on the air duct.

[0042] During the purification process, water can be added to the clean water tank while the water inlet is open, and the water overflows from the partition between the clean water tank and the water washing liquid storage tank and flows into the water washing liquid storage tank; the liquid in the water washing liquid storage tank overflows from the partition between the water washing liquid storage tank and the alkali washing liquid storage tank and flows into the alkali washing liquid storage tank; the liquid in the alkali washing liquid storage tank overflows from the partition between the alkali washing liquid storage tank and the acid washing liquid storage tank and flows into the acid washing liquid storage tank, and then is discharged from the sewage outlet of the acid washing liquid storage tank, and the feed inlets of the acid washing filter chamber and the alkali washing filter chamber are used for feeding at the same time. However, it is not limited to this. In other embodiments, the discharge of waste liquid can be discharged once every period of time, and the water inlet is opened in coordination with the sewage outlet and the feed inlets of the acid washing filter chamber and the alkali washing filter chamber.

[0043] Based on the ideal embodiment of the utility model, through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the invention. The technical scope of the invention is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A washing and purification system capable of removing white smoke, comprising: a deep filtration washing tower (1), wherein a multi-stage filtration chamber (10) is arranged in the deep filtration washing tower (1), and an air inlet (13), a sewage outlet (11), a feed port (12), and an air outlet (54) connected to the multi-stage filtration chamber (10), Features: The deep filtration washing tower (1) comprises an acid washing filter chamber (2), an alkali washing filter chamber (3), a water washing filter chamber (4), and a demisting filter chamber (5) which are arranged in sequence from the air inlet (13) to the air outlet (54) in a transverse direction; A pickling liquid storage tank (21) is provided at the lower part of the pickling filter chamber (2), a pickling filler mounting plate (24) is provided above the pickling liquid storage tank (21), and a pickling spray system (22) spraying toward the pickling filler mounting plate (24); An alkali washing liquid storage tank (31) is provided at the lower part of the alkali washing filter chamber (3), an alkali washing filler mounting plate (34) is provided above the alkali washing liquid storage tank (31), and an alkali washing spraying system (32) spraying towards the alkali washing filler mounting plate (34); A washing liquid storage tank (41) is provided at the lower part of the washing filter chamber (4), a washing filler mounting plate (44) is provided above the washing liquid storage tank (41), and a washing spray system (42) spraying towards the washing filler mounting plate (44); A clean water tank (51) is provided at the lower part of the demisting filter chamber (5).

2. A washing and purification system capable of removing white smoke according to claim 1, Features: A plurality of partition plates are sequentially arranged at intervals at the bottom of the multi-stage filter chamber (10) from the air inlet (13) to the air outlet (54), and the bottom of the multi-stage filter chamber (10) is sequentially divided into an acid washing liquid storage tank (21), an alkaline washing liquid storage tank (31), a water washing liquid storage tank (41), and a clean water tank (51) from the air inlet (13) to the air outlet (54), and the heights of the partition plates are sequentially arranged in ascending steps.

3. A washing and purification system capable of removing white smoke according to claim 2, Features: The pickling liquid storage tank (21), the alkaline washing liquid storage tank (31), the water washing liquid storage tank (41), and the clean water tank (51) are all structures with open tops, and the multi-stage filtering chamber (10) is provided with a water inlet (14) connected to the clean water tank (51); the sewage outlet (11) is connected to the pickling liquid storage tank (21); and the pickling liquid storage tank (21) and the alkaline washing liquid storage tank (31) are respectively connected to a feed inlet (12).

4. A washing and purification system capable of removing white smoke according to claim 3, Features: The gas outlet (54) of the deep filtration scrubbing tower (1) is connected to the fan (7) via an air duct (8) to discharge the purified gas, and an electric heater (6) is provided on the air duct (8) connecting the gas outlet (54) and the fan (7).

5. A washing and purification system capable of removing white smoke according to claim 4, Features: The area above the liquid level of the pickling liquid storage tank (21) in the pickling filter chamber (2) is an air flow path. The pickling filler mounting plate (24) is embedded in the air flow path of the pickling filter chamber (2), and a gap is reserved between the lower part of the pickling filler mounting plate (24) and the bottom of the pickling liquid storage tank (21); a pickling air-permeable filler partition (23) for separating the air flow path in the multi-stage filter chamber (10) is mounted on the pickling filler mounting plate (24); the gas introduced through the air inlet (13) passes through the spraying area of ​​the pickling spray system (22) in the pickling filter chamber (2) and then enters the alkali filter chamber (3) through the pickling filler plate of the pickling filler mounting plate (24); the pickling spray system (22) is connected to the pickling liquid storage tank (21) via a primary circulation pump (25); And / or, the area above the liquid level of the alkali washing liquid storage tank (31) in the alkali washing filter chamber (3) is an air flow passage, the alkali washing filler mounting plate (34) is embedded in the air flow passage of the alkali washing filter chamber (3), and a gap is reserved between the lower part of the alkali washing filler mounting plate (34) and the bottom of the alkali washing liquid storage tank (31); an alkali washing air permeable filler partition (33) for separating the air flow passage in the multi-stage filter chamber (10) is mounted on the alkali washing filler mounting plate (34); the gas purified by the acid washing filter chamber (2) passes through the spraying area of ​​the alkali washing spray system (32) in the alkali washing filter chamber (3) and then enters the water washing filter chamber (4) through the alkali washing filler plate of the alkali washing filler mounting plate (34); the alkali washing spray system (32) is connected to the alkali washing liquid storage tank (31) via a secondary circulation pump (35); And / or, the area above the liquid level of the water washing liquid storage tank (41) in the water washing filter chamber (4) is an air flow path, the water washing filler mounting plate (44) is embedded in the air flow path of the water washing filter chamber (4), and a gap is reserved between the lower part of the water washing filler mounting plate (44) and the bottom of the water washing liquid storage tank (41); a water washing breathable filler partition (43) for separating the air flow path in the multi-stage filter chamber (10) is mounted on the water washing filler mounting plate (44); the gas purified by the alkali washing filter chamber (3) passes through the spraying area of ​​the water washing spraying system (42) in the water washing filter chamber (4) and then enters the demisting filter chamber (5) through the water washing filler plate of the water washing filler mounting plate (44); the water washing spraying system (42) is connected to the water washing liquid storage tank (41) via a three-stage circulation pump (45).

6. A washing and purification system capable of removing white smoke according to claim 5, Features: The pickling spray head of the pickling spray system (22) is directly opposite to the pickling filler plate of the pickling filler mounting plate (24), and a pickling spray area is reserved between the pickling spray head and the pickling filler plate; and / or, the alkali cleaning spray head of the alkali cleaning spray system (32) is directly opposite to the alkali cleaning filler plate of the alkali cleaning filler mounting plate (34), and an alkali cleaning spray area is reserved between the alkali cleaning spray head and the alkali cleaning filler plate; And / or, the water washing spray head of the water washing spray system (42) is directly opposite to the water washing filler plate of the water washing filler mounting plate (44), and a water washing spray area is reserved between the water washing spray head and the water washing filler plate.

7. A washing and purification system capable of removing white smoke according to claim 6, Features: A second water washing spray system (52) is also provided in the demisting filter chamber (5). The second water washing spray system (52) is connected to the clean water tank (51) via a four-stage circulation pump (55). The demisting filter chamber (5) is connected to the air outlet (54) via a demister (53).

8. A washing and purification system capable of removing white smoke according to claim 7, Features: The acid cleaning spray system (22) sprays an acidic liquid, and the alkali cleaning spray system (32) sprays an alkali cleaning liquid.

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